Non-contact roller measuring device

In the cement and mineral industry roller mills are used for fine grinding of the raw materials. During the milling process the rollers are subject to high wear, which strongly reduces the quality of milling at the edges of the rollers. With a laser-optical roller measuring device the necessary regrinding process can be initiated at the right time, and the success of such regrinding can be determined. A protective device with special damping elements and air nozzles protects the laser-optics sensor against vibrations, and keeps the optical system and the beam path free of dust.